单词：grains of sand
grains of sand的用法和样例：
例句
- A smooth, lustrous, variously colored deposit, chiefly calcium carbonate, formed around a grain of sand or other foreign matter in the shells of certain mollusks and valued as a gem.珍珠在几种软体动物的贝壳中，围绕着一粒沙子或其他外来物质形成的一种光滑、有色泽、具有不同颜色且主要是碳酸钙的沉积物，被珍视为宝石
- We can see numberless grains of sand in a windy day.在风天，我们能看到无数沙粒。
单词：grains of sand 相关文章
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原版英文小故事
This is Scientific American 60 Second Science. I'm Christofer Tagiya. Got a minute? Ever run along white sand and it hardens up almost like concrete under your feet? But pick up that same sand and it drizzles through your fingers.So that's the essenc
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